Fog in Kajaani

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 2 hours of dense fog here (10-year average).

Measured at Kajaani Airport (EFKI). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EFKIKajaani Airport78 h/yrclimatology

Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.

When Kajaani fogs in

Fog here concentrates in September and November — about 78 hours in a typical year at EFKI, usually lasting ~1 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EFKI station page.

Fog season

January: ~9 hJanFebruary: ~9 hFebMarch: ~7 hMarApril: ~7 hAprMay: ~3 hMayJune: ~2 hJunJuly: ~1 hJulAugust: ~2 hAugSeptember: ~15 hSepOctober: ~6 hOctNovember: ~12 hNovDecember: ~5 hDec
Fog season runs September through April, peaking in September; fog is mostly a 1 AM–9 AM phenomenon; typically thinning out by 3 PM; a typical event lasts about 1 hour once it forms local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.